The Crimes against Children Research Center at the University of New Hampshire has recently completed the most rigorous, comprehensive evaluation of Children s Advocacy Centers (CACs) to date. The Multi-Site Evaluation of CACs, funded by the Office of Juvenile Justice and Delinquency Prevention (OJJDP) was designed to evaluate the impact of CACs on children, families, systems, and communities. Using a quasi-experimental design, data from over 1000 cases of sexual abuse were collected from four CACs and from communities without CACs. The four participating CAC sites were Lowcountry Children s Center, Dallas Children s Advocacy Center, National Children s Advocacy Center, and the Pittsburgh Child Advocacy Center.